Hey, > I just got a new Lenovo X1 Extreme Gen 4 that comes with a Snapdragon X55 > WWAN modem by Foxconn. I'm running Arch Linux w/ kernel 5.15.5, ModemManager > 1.18.4, libmbim 1.26.2 and libqmi 1.30.2. > > The X55 seems to be supported for older firmware versions (<= v48?) after > setting up the FCC unlock. > > Currently published versions v50 and v51 cause the connection to fail, though: > > -- 8< -- > Nov 28 11:23:50 vega systemd[1]: Starting Modem Manager... > Nov 28 11:23:50 vega ModemManager[1135]: <info> ModemManager (version > 1.18.4-1) starting in system bus... > Nov 28 11:23:50 vega ModemManager[1135]: [qrtr] socket lookup from 1:0 > Nov 28 11:23:50 vega ModemManager[1135]: [qrtr] initial lookup finished > Nov 28 11:23:50 vega systemd[1]: Started Modem Manager. > Nov 28 11:23:51 vega ModemManager[1135]: opening device... > Nov 28 11:23:51 vega ModemManager[1135]: cannot connect to proxy: Could not > connect: Connection refused > Nov 28 11:23:51 vega ModemManager[1135]: spawning new mbim-proxy (try 1)... > Nov 28 11:23:51 vega ModemManager[1135]: [/dev/wwan0mbim0] Couldn't find > descriptors file, possibly not using cdc_mbim > Nov 28 11:23:51 vega ModemManager[1135]: [/dev/wwan0mbim0] Fallback to > default max control message size: 4096 > Nov 28 11:23:52 vega ModemManager[1135]: <info> [wwan0mbim0/mbim] MBIM > device is not QMI capable > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] channel destroyed > Nov 28 11:23:52 vega ModemManager[1135]: <info> [device > /sys/devices/pci0000:00/0000:00:1c.4/0000:08:00.0] creating modem with plugin > 'foxconn' and '4' ports > Nov 28 11:23:52 vega ModemManager[1135]: <info> [base-manager] modem for > device '/sys/devices/pci0000:00/0000:00:1c.4/0000:08:00.0' successfully > created > Nov 28 11:23:52 vega ModemManager[1135]: <info> [base-manager] couldn't > check support for device '/sys/devices/pci0000:00/0000:00:1c.6/0000:09:00.0': > not supported by any plugin > Nov 28 11:23:52 vega ModemManager[1135]: opening device... > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] Couldn't find > descriptors file, possibly not using cdc_mbim > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] Fallback to > default max control message size: 4096 > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] Opening device > with flags 'version-info, proxy, mbim, expect-indications'... > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] created endpoint > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] creating MBIM > device... > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] MBIM device created > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] opening MBIM > device... > Nov 28 11:23:52 vega ModemManager[1135]: opening device... > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] Couldn't find > descriptors file, possibly not using cdc_mbim > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] Fallback to > default max control message size: 4096 > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] MBIM device open > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] Checking version > info (15 retries)... > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] QMI Device > supports 36 services: > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] ctl (1.5) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] wds (1.193) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] dms (1.79) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] nas (1.25) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] qos (1.18) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] wms (1.10) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] auth (1.14) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] at (1.6) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] voice (2.1) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] cat2 (2.24) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] uim (1.77) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] pbm (1.4) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] test (1.0) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] loc (2.131) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] sar (1.0) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] ims (1.91) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] ts (1.0) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] tmd (1.0) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] wda (1.24) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] csvt (1.6) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] imsa (1.44) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] coex (1.0) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] pdc (1.0) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] rfrpe (1.0) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] dsd (1.67) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] unknown [0x2d] > (1.3) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] unknown [0x30] > (1.12) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] unknown [0x31] > (1.0) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] unknown [0x44] > (1.4) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] unknown [0x47] > (1.1) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] unknown [0x49] > (1.7) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] unknown [0x4a] > (1.1) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] unknown [0x4b] > (1.3) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] unknown [0x4c] > (1.0) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] unknown [0x4d] > (1.4) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] unknown [0x4e] > (1.2) > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] Enabling QMI > indications via MBIM... > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] enabled QMI > indications via MBIM > Nov 28 11:23:52 vega ModemManager[1135]: <info> [modem0/wwan0mbim0/mbim] > MBIM device is QMI capable > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] Allocating new > client ID... > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] Registered 'dms' > (version 1.79) client with ID '1' > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] Allocating new > client ID... > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] Registered 'nas' > (version 1.25) client with ID '4' > Nov 28 11:23:52 vega ModemManager[1135]: [/dev/wwan0mbim0] Allocating new > client ID... > Nov 28 11:23:53 vega ModemManager[1135]: [/dev/wwan0mbim0] Registered 'loc' > (version 2.131) client with ID '1' > Nov 28 11:23:53 vega ModemManager[1135]: [/dev/wwan0mbim0] Allocating new > client ID... > Nov 28 11:23:53 vega ModemManager[1135]: [/dev/wwan0mbim0] Registered 'pdc' > (version 1.0) client with ID '1' > Nov 28 11:23:53 vega ModemManager[1135]: <info> [modem0] QMI-based > capability and mode switching support enabled > Nov 28 11:23:54 vega ModemManager[1135]: <warn> [modem0/sim0] couldn't load > list of emergency numbers: Failed to parse CRSM query result '+CRSM: 148,8,""' > Nov 28 11:23:54 vega ModemManager[1135]: <warn> [modem0/sim0] couldn't load > list of preferred networks: Operation not allowed > Nov 28 11:23:54 vega ModemManager[1135]: <warn> [modem0] couldn't setup > carrier config: No such file or directory > Nov 28 11:23:55 vega ModemManager[1135]: <info> [modem0] state changed > (unknown -> disabled) > Nov 28 11:23:55 vega ModemManager[1135]: <info> [modem0] state changed > (disabled -> enabling) > Nov 28 11:23:55 vega ModemManager[1135]: <warn> [modem0] OperationNotAllowed > Nov 28 11:24:04 vega ModemManager[1135]: <warn> [modem0] Failure > Nov 28 11:24:04 vega ModemManager[1135]: <warn> [modem0] couldn't enable > interface: 'Invalid transition' > Nov 28 11:24:04 vega ModemManager[1135]: <info> [modem0] state changed > (enabling -> disabled) > Nov 28 11:24:33 vega ModemManager[1135]: <info> [modem0] simple connect > started... > Nov 28 11:24:33 vega ModemManager[1135]: <info> [modem0] simple connect > state (3/8): enable > Nov 28 11:24:33 vega ModemManager[1135]: <info> [modem0] state changed > (disabled -> enabling) > Nov 28 11:24:43 vega ModemManager[1135]: <warn> [modem0] Failure > Nov 28 11:24:53 vega ModemManager[1135]: <warn> [modem0] Failure > Nov 28 11:24:53 vega ModemManager[1135]: <warn> [modem0] couldn't enable > interface: 'Invalid transition' > Nov 28 11:24:53 vega ModemManager[1135]: <info> [modem0] state changed > (enabling -> disabled) > Nov 28 11:24:53 vega ModemManager[1135]: <info> [modem0] simple connect > started... > Nov 28 11:24:53 vega ModemManager[1135]: <info> [modem0] simple connect > state (3/8): enable > Nov 28 11:24:53 vega ModemManager[1135]: <info> [modem0] state changed > (disabled -> enabling) > Nov 28 11:24:58 vega ModemManager[1135]: <info> [modem0] simple connect > started... > Nov 28 11:24:58 vega ModemManager[1135]: <info> [modem0] simple connect > state (4/8): wait to get fully enabled > Nov 28 11:25:02 vega ModemManager[1135]: <warn> [modem0] Failure > Nov 28 11:25:08 vega ModemManager[1135]: <info> [modem0] simple connect > started... > Nov 28 11:25:08 vega ModemManager[1135]: <info> [modem0] simple connect > state (4/8): wait to get fully enabled > Nov 28 11:25:12 vega ModemManager[1135]: <warn> [modem0] Failure > Nov 28 11:25:12 vega ModemManager[1135]: <warn> [modem0] couldn't enable > interface: 'Invalid transition' > Nov 28 11:25:12 vega ModemManager[1135]: <info> [modem0] state changed > (enabling -> disabled) > Nov 28 11:25:12 vega ModemManager[1135]: <info> [modem0] simple connect > started... > Nov 28 11:25:12 vega ModemManager[1135]: <info> [modem0] simple connect > state (3/8): enable > Nov 28 11:25:12 vega ModemManager[1135]: <info> [modem0] state changed > (disabled -> enabling) > Nov 28 11:25:21 vega ModemManager[1135]: <warn> [modem0] Failure > Nov 28 11:25:31 vega ModemManager[1135]: <warn> [modem0] Failure > Nov 28 11:25:31 vega ModemManager[1135]: <warn> [modem0] couldn't enable > interface: 'Invalid transition' > Nov 28 11:25:31 vega ModemManager[1135]: <info> [modem0] state changed > (enabling -> disabled) > Nov 28 11:25:57 vega ModemManager[1135]: <info> caught signal, shutting > down... > -- 8< -- > > Do you have any idea whether this is related to the FCC unlock procedure or > has something else changed? >
Since MM 1.18.4 the FCC unlock operation needs to be explicitly configured by the user, did you do that already, or is this issue happening even after doing that? https://modemmanager.org/docs/modemmanager/fcc-unlock/#fcc-unlock-procedures-in-modemmanager--1184-1 -- Aleksander https://aleksander.es
